. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. JUVENILE HORMONE AND EGG MATURATION 385 The fact that the number of eggs matured was dependent on the amount of JH injected into decapitated females as shown in Figure 2, suggested that the time course of JH release could be estimated by correlating the number of eggs pro- duced in this same set of animals with the time of decapitation. Curve B in Fig- ure 3 represents the rate of JH release. For instance, by 24 hours, enough hormone had been released into the moth's bloodstream to promote the maturation of 45 eggs whereas 1
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. JUVENILE HORMONE AND EGG MATURATION 385 The fact that the number of eggs matured was dependent on the amount of JH injected into decapitated females as shown in Figure 2, suggested that the time course of JH release could be estimated by correlating the number of eggs pro- duced in this same set of animals with the time of decapitation. Curve B in Fig- ure 3 represents the rate of JH release. For instance, by 24 hours, enough hormone had been released into the moth's bloodstream to promote the maturation of 45 eggs whereas 12 hours earlier, a moth could mature only 24 eggs when deprived of its source of JH. Curve C in Figure 3 is a reference curve showing the rate of appearance of mature eggs in intact females. The data for this curve were obtained by dissect- ing female moths at various times after eclosion and counting the mature eggs present in the ovaries. The latter two curves show a horizontal displacement of 12 hours at the half- maximum point of 50 eggs. For example, an animal decapitated at 24 hours and dissected at 96 hours contains approximately the number of mature eggs characteristic of a 36 hour old female. This 12 hour period most likely represents the maximum time it takes for a follicle to complete development after becoming. (-) d (a) (b) (c) (d) (e) FIGURE 4. Electrophoretograms of hemolymph (a-d) and mature egg homogenate (e) : (a) male pupa; (b) female pupa; (c) male adult; (d) female adult; (e) egg homogenate. Arrow indicates Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 189
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
